package com.atguigu.gulimail.product.service.impl;

import com.atguigu.common.constant.ProductConstant;
import com.atguigu.gulimail.product.dao.AttrAttrgroupRelationDao;
import com.atguigu.gulimail.product.dao.AttrGroupDao;
import com.atguigu.gulimail.product.dao.CategoryDao;
import com.atguigu.gulimail.product.entity.AttrAttrgroupRelationEntity;
import com.atguigu.gulimail.product.entity.AttrGroupEntity;
import com.atguigu.gulimail.product.entity.CategoryEntity;
import com.atguigu.gulimail.product.service.CategoryService;
import com.atguigu.gulimail.product.vo.AttrGroupRelationVo;
import com.atguigu.gulimail.product.vo.AttrRespVo;
import com.atguigu.gulimail.product.vo.AttrVo;
import com.baomidou.mybatisplus.core.conditions.update.UpdateWrapper;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.Arrays;
import java.util.Collection;
import java.util.List;
import java.util.Map;
import java.util.stream.Collectors;

import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.atguigu.common.utils.PageUtils;
import com.atguigu.common.utils.Query;

import com.atguigu.gulimail.product.dao.AttrDao;
import com.atguigu.gulimail.product.entity.AttrEntity;
import com.atguigu.gulimail.product.service.AttrService;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.util.StringUtils;


@Service("attrService")
public class
AttrServiceImpl extends ServiceImpl<AttrDao, AttrEntity> implements AttrService {

    @Autowired
    AttrAttrgroupRelationDao attrAttrgroupRelationDao;

    @Autowired
    AttrGroupDao attrGroupDao;

    @Autowired
    CategoryDao categoryDao;

    @Autowired
    CategoryService categoryService;


    @Override
    public PageUtils queryPage(Map<String, Object> params) {
        IPage<AttrEntity> page = this.page(
                new Query<AttrEntity>().getPage(params),
                new QueryWrapper<AttrEntity>()
        );

        return new PageUtils(page);
    }
    @Transactional
    @Override
    public void saveAttr (AttrVo attr) {
        //1.保存基本数据

        AttrEntity attrentity = new AttrEntity();
        BeanUtils.copyProperties(attr,attrentity);
        this.save(attrentity);
        //保存关联关系
        if (attr.getAttrType() == ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode()&&attr.getAttrGroupId()!=null) {
            AttrAttrgroupRelationEntity relationEntity = new AttrAttrgroupRelationEntity();
            relationEntity.setAttrGroupId(attr.getAttrGroupId());
            relationEntity.setAttrId(attrentity.getAttrId());
            attrAttrgroupRelationDao.insert(relationEntity);


        }

    }

    @Override
    public PageUtils queryBaseAttrPage (Map<String, Object> params, Long catelogId, String type) {
        QueryWrapper<AttrEntity> queryWrapper =
                new QueryWrapper<AttrEntity>().
                        eq("attr_type",
                            "base".equalsIgnoreCase(type)?ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode():ProductConstant.AttrEnum.ATTR_TYPE_SALE.getCode()
                        );
        if(catelogId !=0){
            queryWrapper.eq("catelog_id",catelogId);
        }
        String key = (String) params.get("key");

        if(!StringUtils.isEmpty(key)){
            queryWrapper.and((wrapper)->{
                queryWrapper.eq("attr_id",key).or().like("attr_name",key);
            });
        }


        IPage<AttrEntity> page = this.page(
                new Query<AttrEntity>().getPage(params),
                queryWrapper
        );
        PageUtils pageUtils = new PageUtils(page);
        List<AttrEntity> records = page.getRecords();
        List<AttrRespVo> respVos = records.stream().map((attrEntity) -> {
            AttrRespVo attrRespVo = new AttrRespVo();
            BeanUtils.copyProperties(attrEntity, attrRespVo);

            //设置分类和分组的名字
            if ("base".equalsIgnoreCase(type)){
                AttrAttrgroupRelationEntity attrId
                        = attrAttrgroupRelationDao.selectOne(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_id", attrEntity.getAttrId()));
                if (attrId != null&&attrId.getAttrGroupId()!=null) {
                    AttrGroupEntity attrGroupEntity = attrGroupDao.selectById(attrId.getAttrGroupId());
                    attrRespVo.setGroupName(attrGroupEntity.getAttrGroupName());
                }
            }

            //查找分类的名字
            CategoryEntity categoryEntity = categoryDao.selectById(attrEntity.getCatelogId());
            if (categoryEntity != null) {
                attrRespVo.setCatelogName(categoryEntity.getName());
            }


            return attrRespVo;
        }).collect(Collectors.toList());
        pageUtils.setList(respVos);


        return pageUtils;
    }

    /**
     * getAttrInfo
     * @param attrId
     * @return
     */
    @Override
    public AttrRespVo getAttrInfo (Long attrId) {
        AttrRespVo attrRespVo = new AttrRespVo();
        AttrEntity attrEntity = this.getById(attrId);
        BeanUtils.copyProperties(attrEntity,attrRespVo);
        if(attrEntity.getAttrType() == ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode()){
            AttrAttrgroupRelationEntity attr
                    = attrAttrgroupRelationDao.selectOne(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_id", attrId));
            if(attr!=null){
                attrRespVo.setAttrGroupId(attr.getAttrGroupId());
                AttrGroupEntity attrGroupEntity = attrGroupDao.selectById(attr.getAttrGroupId());
                if(attrGroupEntity!=null){
                    attrRespVo.setGroupName(attrGroupEntity.getAttrGroupName());
                }

            }
        }
        /**
         * 1.设置分组信息
         */

        /**
         * 设置分类信息
         */
        Long catelogId = attrEntity.getCatelogId();
        Long[] catelogPath = categoryService.finCatelogPath(catelogId);
        attrRespVo.setCatelogPath(catelogPath);

        CategoryEntity categoryEntity = categoryDao.selectById(catelogId);
        if(categoryEntity!=null){
            attrRespVo.setCatelogName(categoryEntity.getName());

        }

        return attrRespVo;
    }

    /**updateAttr
     *
     * @param attr
     */
    @Transactional
    @Override
    public void updateAttr (AttrVo attr) {
       AttrEntity attrEntity =  new AttrEntity();
       BeanUtils.copyProperties(attr,attrEntity);
       this.updateById(attrEntity);
       if(attrEntity.getAttrType() == ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode()){
           //1.修改分组关联
           AttrAttrgroupRelationEntity relationEntity = new AttrAttrgroupRelationEntity();
           relationEntity.setAttrGroupId(attr.getAttrGroupId());
           relationEntity.setAttrId(attr.getAttrId());
           Integer count = attrAttrgroupRelationDao.
                   selectCount(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_id", attr.getAttrId()));
           if(count>0){


               attrAttrgroupRelationDao.
                       update(relationEntity,
                               new UpdateWrapper<AttrAttrgroupRelationEntity>().eq("attr_id", attr.getAttrId())
                       );
           }else {
               attrAttrgroupRelationDao.insert(relationEntity);
           }

       }

    }

    /**
     * 根据分组id查询所有关联的所有基本属性
     * @param attrgroupId
     * @return
     */
    @Override
    public List<AttrEntity> getRelationAttr (Long attrgroupId) {
        List<AttrAttrgroupRelationEntity> entities = attrAttrgroupRelationDao.selectList(new QueryWrapper<AttrAttrgroupRelationEntity>().eq("attr_group_id", attrgroupId));
        List<Long> attrIds = entities.stream().map((attr) -> {
            return attr.getAttrId();
        }).collect(Collectors.toList());
        if(attrIds==null||attrIds.size() ==0){
            return null;
        }
        Collection<AttrEntity> attrEntities = this.listByIds(attrIds);
        return (List<AttrEntity>) attrEntities;
    }

    /**
     * 删除关联关系
     * @param vos
     */
    @Override
    public void deleteRelation (AttrGroupRelationVo[] vos) {
        //attrAttrgroupRelationDao.delete(new QueryWrapper<>().eq("attr_id",1L).eq("attr_group_id",1l))
   //批量删除
        List<AttrAttrgroupRelationEntity> entities = Arrays.asList(vos).stream().map((item) -> {
            AttrAttrgroupRelationEntity relationEntity = new AttrAttrgroupRelationEntity();
            BeanUtils.copyProperties(item, relationEntity);
            return relationEntity;
        }).collect(Collectors.toList());
        attrAttrgroupRelationDao.deleteBatchRelation(entities);

    }

    /**
     * 获取当前分组没有关联的所有属性1
     * @param params
     * @param attrgroupId
     * @return
     */
    @Override
    public PageUtils getNoRelationAttr (Map<String, Object> params, Long attrgroupId) {
        //1.当前分组只能关联自己所属的分类的所有属性
        AttrGroupEntity attrGroupEntity = attrGroupDao.selectById(attrgroupId);
        Long catelogId = attrGroupEntity.getCatelogId();
        //2.当前分组只能1关联别的分组没有引用的属性

        //2.1 当前分类下的其他分组
        List<AttrGroupEntity> group
                = attrGroupDao.selectList(new QueryWrapper<AttrGroupEntity>().eq("catelog_id", catelogId));

        List<Long> collect = group.stream().map((item) -> {
            return item.getAttrGroupId();
        }).collect(Collectors.toList());


        //2.2 这些分组所关联的属性
        List<AttrAttrgroupRelationEntity> groupId
                = attrAttrgroupRelationDao.selectList(new QueryWrapper<AttrAttrgroupRelationEntity>().in("attr_group_id", collect));
        List<Long> attrIds = groupId.stream().map((item) -> {
            return item.getAttrId();
        }).collect(Collectors.toList());

        //2.3 从当前分类的所有属性中移除这些属性;
        QueryWrapper<AttrEntity> attrEntityQueryWrapper = new QueryWrapper<AttrEntity>().eq("catelog_id", catelogId).eq("attr_type",ProductConstant.AttrEnum.ATTR_TYPE_BASE.getCode());
        if(attrIds!=null &&attrIds.size()>0){
            attrEntityQueryWrapper.notIn("attr_id", attrIds);
        }
        String key = (String) params.get("key");
        if(!StringUtils.isEmpty(key)){
            attrEntityQueryWrapper.and((w)->{
                w.eq("attr_id",key).or().like("attr_name",key);
            });
        }

        IPage<AttrEntity> page = this.page(new Query<AttrEntity>().getPage(params), attrEntityQueryWrapper);
        PageUtils pageUtils = new PageUtils(page);

        return pageUtils;
    }

    @Override
    public List<Long> seletcSearchAttrIds (List<Long> attrIds) {

        return baseMapper.seletcSearchAttrIds(attrIds);
    }

}